CN105859317B - 一种利用污泥的方法 - Google Patents
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Abstract
本发明属于城市污水处理技术领域,具体是一种利用污泥的方法。该方法是将污泥经除臭处理后,与竹炭、海泡石、发泡剂、钾长石、膨胀珍珠岩、煅烧高岭土、硅灰石粉、十二烷基硫酸钠一起制成保温砖。使用该方法既能实现了污泥的资源化利用,实现变废为宝的目的,还能获得新的经济效益,减轻污泥处理的费用负担。
Description
技术领域
本发明涉及城市污水处理技术领域,具有是一种利用污泥的方法。
背景技术
污泥是污水处理后的产物,是一种由有机残片、细菌菌体、无机颗粒、胶体等组成的极其复杂的非均质体。污泥的主要特性是含水率高,有机物含量高,容易腐化发臭,并且颗粒较细,比重较小,呈胶状液态。随着我国城镇化进程的加快,城市污水排放量不断增加,污水处理厂产生的污泥特别是剩余污泥的量越来越大。一般污泥处理处置费用占到污水处理厂总运行费用的50%以上,需要巨额的资金投入。因此,若能够实现污泥的资源化利用,则可以在一定程度上减轻污水处理厂的运行经营费用,也有利于环境保护和实现资源回收利用。
发明内容
本发明要解决的技术问题是提供一种利用污泥的方法,以实现回收利用污泥,实现变废为宝的目的。
为解决上述技术问题,本发明采用以下技术方案:
一种利用污泥的方法,是将污泥经除臭处理后,与竹炭、海泡石、发泡剂、钾长石、膨胀珍珠岩、煅烧高岭土、硅灰石粉、十二烷基硫酸钠一起制成保温砖。其中,各物料的重量份为:污泥50~100份、竹炭5~15份、海泡石5~15份、发泡剂10~18份、钾长石15~25份、膨胀珍珠岩5~10份、煅烧高岭土5~10份、硅灰石粉1~10份、十二烷基硫酸钠1~5份。
作为上述技术方案的进一步改进:
所涉及各物料的优选重量份为:污泥70~90份、竹炭8~12份、海泡石8~13份、发泡剂12~17份、钾长石18~22份、膨胀珍珠岩6~9份、煅烧高岭土6~9份、硅灰石粉3~8份、十二烷基硫酸钠2~4份。
所涉及各物料的最佳重量份为:污泥80份、竹炭11份、海泡石10份、发泡剂15份、钾长石21份、膨胀珍珠岩8份、煅烧高岭土7.5份、硅灰石粉4.5份、十二烷基硫酸钠3份。
所述除臭处理的过程为:按照每吨的污泥加入50~100克的除臭剂的比例,混合放置5~10天;所述除臭剂为负载有脱氮微生物菌群和EM菌群混合菌的微生物载体;所述微生物载体为蛭石、木屑和粘土按照1:2~5:0.1~0.5重量比混合后,加入粘合剂后压制成颗粒状。
所述制成保温砖的过程为:1)将污泥加热到600~700℃并保温2~4小时,冷却后磨成粒径1~5mm的颗粒,最后与竹炭、海泡石、发泡剂、硅灰石粉混合,并混入混合物重量20~30%的水,以进行发泡处理;2)将膨胀珍珠岩、钾长石、煅烧高岭土和十二烷基硫酸钠混合粉碎成粉末状,再与步骤1)获得的产物混合,并混入混合物重量5~15%的水,然后制成砖坯;3)将砖坯置于加热环境中,先从常温升温至850℃,升温时间为40~60分钟;再从850℃升温至1100℃,升温时间为60~80分钟,并保持1100℃的温度4~6小时;然后从1000℃升温至1250℃,升温时间为30~60分钟;最后自然降温至室温,即可制得保温砖。
本发明的有益效果为:
本发明的方法步骤简单易控,制得的保温砖质地坚硬、比重小、气孔率高、耐火温度超过1100度,可以轻易抵抗常规火灾,导热系数小、抗压强度高,非常适合用于外墙的隔热保温以及室内的隔热隔音保温。使用该方法既能实现了污泥的资源化利用,实现变废为宝的目的,还能获得新的经济效益,减轻污泥处理的费用负担。
具体实施方式
下面结合具体实施例用于说明和解释本发明。
实施例1
一种利用污泥的方法,是将污泥经除臭处理后,与竹炭、海泡石、发泡剂、钾长石、膨胀珍珠岩、煅烧高岭土、硅灰石粉、十二烷基硫酸钠一起制成保温砖。其中,各物料的重量份为:污泥80份、竹炭11份、海泡石10份、发泡剂15份、钾长石21份、膨胀珍珠岩8份、煅烧高岭土7.5份、硅灰石粉4.5份、十二烷基硫酸钠3份。
所述除臭处理的过程为:按照每吨的污泥加入80克的除臭剂的比例,混合放置8天;所述除臭剂为负载有脱氮微生物菌群和EM菌群混合菌的微生物载体;所述微生物载体为蛭石、木屑和粘土按照1:4:0.25重量比混合后,加入粘合剂后压制成颗粒状。
所述制成保温砖的过程为:1)将污泥加热到650℃并保温3小时,冷却后磨成粒径1~5mm的颗粒,最后与竹炭、海泡石、发泡剂、硅灰石粉混合,并混入混合物重量25%的水,以进行发泡处理;2)将膨胀珍珠岩、钾长石、煅烧高岭土和十二烷基硫酸钠混合粉碎成粉末状,再与步骤1)获得的产物混合,并混入混合物重量10%的水,然后制成砖坯;3)将砖坯置于加热环境中,先从常温升温至850℃,升温时间为50分钟;再从850℃升温至1100℃,升温时间为70分钟,并保持1100℃的温度5小时;然后从1000℃升温至1250℃,升温时间为50分钟;最后自然降温至室温,即可制得保温砖。
实施例2
一种利用污泥的方法,是将污泥经除臭处理后,与竹炭、海泡石、发泡剂、钾长石、膨胀珍珠岩、煅烧高岭土、硅灰石粉、十二烷基硫酸钠一起制成保温砖。其中,各物料的重量份为:污泥50份、竹炭15份、海泡石5份、发泡剂18份、钾长石15份、膨胀珍珠岩10份、煅烧高岭土5份、硅灰石粉10份、十二烷基硫酸钠1份。
所述除臭处理的过程为:按照每吨的污泥加入100克的除臭剂的比例,混合放置5天;所述除臭剂为负载有脱氮微生物菌群和EM菌群混合菌的微生物载体;所述微生物载体为蛭石、木屑和粘土按照1:5:0.1重量比混合后,加入粘合剂后压制成颗粒状。
所述制成保温砖的过程为:1)将污泥加热到700℃并保温2小时,冷却后磨成粒径1~5mm的颗粒,最后与竹炭、海泡石、发泡剂、硅灰石粉混合,并混入混合物重量30%的水,以进行发泡处理;2)将膨胀珍珠岩、钾长石、煅烧高岭土和十二烷基硫酸钠混合粉碎成粉末状,再与步骤1)获得的产物混合,并混入混合物重量5%的水,然后制成砖坯;3)将砖坯置于加热环境中,先从常温升温至850℃,升温时间为60分钟;再从850℃升温至1100℃,升温时间为60分钟,并保持1100℃的温度6小时;然后从1000℃升温至1250℃,升温时间为30分钟;最后自然降温至室温,即可制得保温砖。
实施例3
一种利用污泥的方法,是将污泥经除臭处理后,与竹炭、海泡石、发泡剂、钾长石、膨胀珍珠岩、煅烧高岭土、硅灰石粉、十二烷基硫酸钠一起制成保温砖。其中,各物料的重量份为:污泥100份、竹炭5份、海泡石15份、发泡剂10份、钾长石25份、膨胀珍珠岩5份、煅烧高岭土10份、硅灰石粉1份、十二烷基硫酸钠5份。
所述除臭处理的过程为:按照每吨的污泥加入50克的除臭剂的比例,混合放置10天;所述除臭剂为负载有脱氮微生物菌群和EM菌群混合菌的微生物载体;所述微生物载体为蛭石、木屑和粘土按照1:2:0.5重量比混合后,加入粘合剂后压制成颗粒状。
所述制成保温砖的过程为:1)将污泥加热到600℃并保温4小时,冷却后磨成粒径1~5mm的颗粒,最后与竹炭、海泡石、发泡剂、硅灰石粉混合,并混入混合物重量20%的水,以进行发泡处理;2)将膨胀珍珠岩、钾长石、煅烧高岭土和十二烷基硫酸钠混合粉碎成粉末状,再与步骤1)获得的产物混合,并混入混合物重量15%的水,然后制成砖坯;3)将砖坯置于加热环境中,先从常温升温至850℃,升温时间为40分钟;再从850℃升温至1100℃,升温时间为80分钟,并保持1100℃的温度4小时;然后从1000℃升温至1250℃,升温时间为60分钟;最后自然降温至室温,即可制得保温砖。
Claims (3)
1.一种利用污泥的方法,其特征在于,将污泥经除臭处理后,与竹炭、海泡石、发泡剂、钾长石、膨胀珍珠岩、煅烧高岭土、硅灰石粉、十二烷基硫酸钠一起制成保温砖;其中,各物料的重量份为:污泥50~100份、竹炭5~15份、海泡石5~15份、发泡剂10~18份、钾长石15~25份、膨胀珍珠岩5~10份、煅烧高岭土5~10份、硅灰石粉1~10份、十二烷基硫酸钠1~5份;
所述除臭处理的过程为:按照每吨的污泥加入50~100克的除臭剂的比例,混合放置5~10天;所述除臭剂为负载有脱氮微生物菌群和EM菌群混合菌的微生物载体;所述微生物载体为蛭石、木屑和粘土按照1:2~5:0.1~0.5重量比混合后,加入粘合剂后压制成颗粒状;
所述制成保温砖的过程为:1)将污泥加热到600~700℃并保温2~4小时,冷却后磨成粒径1~5mm的颗粒,最后与竹炭、海泡石、发泡剂、硅灰石粉混合,并混入混合物重量20~30%的水,以进行发泡处理;2)将膨胀珍珠岩、钾长石、煅烧高岭土和十二烷基硫酸钠混合粉碎成粉末状,再与步骤1)获得的产物混合,并混入混合物重量5~15%的水,然后制成砖坯;3)将砖坯置于加热环境中,先从常温升温至850℃,升温时间为40~60分钟;再从850℃升温至1100℃,升温时间为60~80分钟,并保持1100℃的温度4~6小时;然后从1000℃升温至1250℃,升温时间为30~60分钟;最后自然降温至室温,即可制得保温砖。
2.根据权利要求1所述的方法,其特征在于,所述各物料的重量份为:污泥70~90份、竹炭8~12份、海泡石8~13份、发泡剂12~17份、钾长石18~22份、膨胀珍珠岩6~9份、煅烧高岭土6~9份、硅灰石粉3~8份、十二烷基硫酸钠2~4份。
3.根据权利要求2所述的方法,其特征在于,所述各物料的重量份为:污泥80份、竹炭11份、海泡石10份、发泡剂15份、钾长石21份、膨胀珍珠岩8份、煅烧高岭土7.5份、硅灰石粉4.5份、十二烷基硫酸钠3份。
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